[Users] Using python sdk to find the VMs running on a host.

Hi, I am using the ovirt-python-sdk to figure out if the host is idle or not. The way to determine if the host is idle at a given instant is finding out the number of VMs running on it. If the number of VMs = 0 implies host is idle. I was exploring the python sdk to figure out Host-VMs mapping i.e What are the VMs running on the different host. Looks like the only way to find this, is to query each VM in /api/vms list to get the host on which it is running. Is this the right way ? Is there no direct query or REST API to list the VMs running on a given host at that instant. I was looking to get the data center hierarchy structure. Number_of_datacenters | V clusters in each data center | V Hosts in each cluster | V VMs on each host. This kind of mapping as seen on the GUI. Is there any way to obtain the same from the ovirt-python-sdk ? With this information, this would help me write scripts to turn-off my hosts if idle automatically and power them on as required. Regards, Deepthi